Welcome to MobileRead, Lucilla!
I have never used ADE on my 700, but I do love my reader. I was a little worried that they were discontinueing the model, but am intrigued by the 600. While you are here, be sure and check out all the free ebooks you can download in either the
Epub or
Lrf format. If you have any other questions about the 700, we have a dedicated
forum for the Sony 700 where you might find the answers and if not, is the best place to post them. Enjoy.
Happy Reading.